Hisayuki Machii

Hisayuki Machii
町井 久之
Machii featured on the cover of a posthumous biographical book
Born
Jeong Geon-yeong

(1923-07-20)July 20, 1923
Minami-Sakuma Cho, Shiba Ward, Tokyo, Empire of Japan
DiedSeptember 14, 2002(2002-09-14) (aged 79)
Other names"Ginza Tiger" (銀座の虎)

Hisayuki Machii (町井 久之, Machii Hisayuki; July 20, 1923 – September 14, 2002), born Jeong Geon-yeong (Korean: 정건영; Hanja: 鄭建永) was a Korean Japanese yakuza boss. He was nicknamed the "Ginza Tiger" (銀座の虎, Ginza no Tora), and was the founder of one of Japan's most notorious yakuza gangs, the Tosei-Kai.